Multiplying Vectors: Here are three vectors in meters:?

D1= -3.0i + 3.0j + 2.0k


D2= -2.0i - 4.0j + 2.0k


D3= 2.0i + 3.0j + 1.0k





What results from (a) D1 x (D2 + D3), (b) D1 x (D2 x D3) and


(c) D1 x (D2 + D3)

Multiplying Vectors: Here are three vectors in meters:?
(a) D' = -1j + 3k R= 11i + 9j - 9k


(b) D' = -2i + 6j +2k R = -6i + 2j - 12k





Is (c) supposed to be the same as (a)?
Reply:multiply or cross product???





a vector has a magnitude and a direction. First find the magnitude by taking the square of the individual components then the square root of the sum of those components ...





Then the direction is going to have to be determined geometricly

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